viewBox
<min-x>
<min-y>
<width>
800
<height>
600
preserveAspectRatio
<align>
None
xMinYMin
xMinYMid
xMinYMax
xMidYMin
xMidYMid
xMidYMax
xMaxYMin
xMaxYMid
xMaxYMax
meet
slice
Show x & y Guidelines